how to install SageAttention And Torch? #1416

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1. MrMyth

   added

   bugSomething isn't workingSomething isn't working

   on Oct 9, 2025
2. precursor1188 commented on Oct 31, 2025

   

   precursor1188

   on Oct 31, 2025

   More actions

   I get this error message for SageAttention. Triton seems OK

   Installing SageAttention
   Using Python 3.12.10 environment at: venv
   error: The build backend returned an error
   Caused by: Call to setuptools.build_meta.build_wheel failed (exit code: 1)

   [stderr]
   Traceback (most recent call last):
   File "", line 8, in
   File "C:\StabilityMatrix\Data\Assets\uv\cache\builds-v0.tmpGWA3c7\Lib\site-packages\setuptools_init_.py", line 24, in
   from . import logging, monkey
   File "C:\StabilityMatrix\Data\Assets\uv\cache\builds-v0.tmpGWA3c7\Lib\site-packages\setuptools\logging.py", line 5, in
   from . import monkey
   File "C:\StabilityMatrix\Data\Assets\uv\cache\builds-v0.tmpGWA3c7\Lib\site-packages\setuptools\monkey.py", line 13, in
   import distutils.filelist
   ModuleNotFoundError: No module named 'distutils'

   hint: distutils was removed from the standard library in Python 3.12. Consider adding a constraint to avoid building a package that depends on distutils.
   Error: StabilityMatrix.Core.Exceptions.ProcessException: pip install failed with code 2: 'Using Python 3.12.10 environment at: venv\nerror: The build backend returned an error\n Caused by: Call to setuptools.build_meta.build_wheel failed (exit code: 1)\n\n[stderr]\nTraceback (most recent call last):\n File "", line 8, in \n File "C:\StabilityMatrix\Data\Assets\uv\cache\builds-v0.tmpGWA3c7\Lib\site-packages\setuptools_init_.py", line 24, in \n from . import logging, monkey\n File "C:\StabilityMatrix\Data\Assets\uv\cache\builds-v0.tmpGWA3c7\Lib\site-packages\setuptools\logging.py", line 5, in \n from . import monkey\n File "C:\StabilityMatrix\Data\Assets\uv\cache\builds-v0.tmpGWA3c7\Lib\site-packages\setuptools\monkey.py", line 13, in \n import distutils.filelist\nModuleNotFoundError: No module named 'distutils'\n\nhint: distutils was removed from the standard library in Python 3.12. Consider adding a constraint to avoid building a package that depends on distutils.\n'
   at StabilityMatrix.Core.Python.UvVenvRunner.PipInstall(ProcessArgs args, Action1 outputDataReceived) at StabilityMatrix.Core.Models.PackageModification.InstallSageAttentionStep.ExecuteAsync(IProgress1 progress)
   at StabilityMatrix.Core.Models.PackageModification.InstallSageAttentionStep.ExecuteAsync(IProgress1 progress) at StabilityMatrix.Core.Models.PackageModification.PackageModificationRunner.ExecuteSteps(IEnumerable1 steps)
3. nyukers commented on Nov 15, 2025

   

   nyukers

   on Nov 15, 2025

   Last edited by nyukers

   More actions

   Installing Triton
   Using Python 3.10.11 environment at: venv
   Audited 1 package in 6ms
   Downloading Python libraries
   Installing SageAttention
   Using Python 3.10.11 environment at: venv
   error: The build backend returned an error
   Caused by: Call to setuptools.build_meta.build_wheel failed (exit code: 1)

   [stderr]
   Traceback (most recent call last):
   File "", line 14, in
   File "D:\Matrix\Data\Assets\uv\cache\builds-v0.tmptWhiVB\lib\site-packages\setuptools\build_meta.py", line 332, in get_requires_for_build_wheel
   return self._get_build_requires(config_settings, requirements=[])
   File "D:\Matrix\Data\Assets\uv\cache\builds-v0.tmptWhiVB\lib\site-packages\setuptools\build_meta.py", line 302, in _get_build_requires
   self.run_setup()
   File "D:\Matrix\Data\Assets\uv\cache\builds-v0.tmptWhiVB\lib\site-packages\setuptools\build_meta.py", line 318, in run_setup
   exec(code, locals())
   File "", line 36, in
   ModuleNotFoundError: No module named 'torch'

   hint: This error likely indicates that file:///D:/Matrix/Data/Packages/ComfyUI/SageAttention depends on torch, but doesn't declare it as a build dependency. If file:///D:/Matrix/Data/Packages/ComfyUI/SageAttention is a first-party package, consider adding torch to its build-system.requires. Otherwise, uv pip install torch into the environment and re-run with --no-build-isolation.
   Error: StabilityMatrix.Core.Exceptions.ProcessException: pip install failed with code 2: 'Using Python 3.10.11 environment at: venv\nerror: The build backend returned an error\n Caused by: Call to setuptools.build_meta.build_wheel failed (exit code: 1)\n\n[stderr]\nTraceback (most recent call last):\n File "", line 14, in \n File "D:\Matrix\Data\Assets\uv\cache\builds-v0.tmptWhiVB\lib\site-packages\setuptools\build_meta.py", line 332, in get_requires_for_build_wheel\n return self._get_build_requires(config_settings, requirements=[])\n File "D:\Matrix\Data\Assets\uv\cache\builds-v0.tmptWhiVB\lib\site-packages\setuptools\build_meta.py", line 302, in _get_build_requires\n self.run_setup()\n File "D:\Matrix\Data\Assets\uv\cache\builds-v0.tmptWhiVB\lib\site-packages\setuptools\build_meta.py", line 318, in run_setup\n exec(code, locals())\n File "", line 36, in \nModuleNotFoundError: No module named 'torch'\n\nhint: This error likely indicates that file:///D:/Matrix/Data/Packages/ComfyUI/SageAttention depends on torch, but doesn't declare it as a build dependency. If file:///D:/Matrix/Data/Packages/ComfyUI/SageAttention is a first-party package, consider adding torch to its build-system.requires. Otherwise, uv pip install torch into the environment and re-run with --no-build-isolation.\n'
   at StabilityMatrix.Core.Python.UvVenvRunner.PipInstall(ProcessArgs args, Action1 outputDataReceived) at StabilityMatrix.Core.Models.PackageModification.InstallSageAttentionStep.ExecuteAsync(IProgress1 progress)
   at StabilityMatrix.Core.Models.PackageModification.InstallSageAttentionStep.ExecuteAsync(IProgress1 progress) at StabilityMatrix.Core.Models.PackageModification.PackageModificationRunner.ExecuteSteps(IEnumerable1 steps)

   My env: 22H2, 4060Ti, CUDA 12.9, Matrix 2.15.4
4. nyukers commented on Nov 15, 2025

   

   nyukers

   on Nov 15, 2025

   More actions

   How can I upgrade version of Python, CUDA and Torch in Stability Matrix?
5. github-actions commented on Jan 15, 2026

   

   github-actionsBot

   on Jan 15, 2026 – with GitHub Actions

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   This issue is stale because it has been open 60 days with no activity. Remove the stale label or comment, else this will be closed in 7 days.
6. github-actions

   added

   staleStale issue or inactive for long period of timeStale issue or inactive for long period of time

   on Jan 15, 2026
7. github-actions commented on Jan 22, 2026

   

   github-actionsBot

   on Jan 22, 2026 – with GitHub Actions

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   This issue was closed because it has been stale for 7 days with no activity.
8. github-actions

   closed this as not plannedon Jan 22, 2026